Gaug­ing fea­si­bil­ity

Down to Earth - - ANALYSIS -

In­dian in­sti­tu­tions are as­sess­ing dura­bil­ity of prod­ucts made from C&D de­bris

NA­TIONAL COUN­CIL FOR CE­MENT AND BUILD­ING MA­TE­RI­ALS, a pre­mium gov­ern­ment R&D fa­cil­ity based at Bal­lab­garh, has car­ried out stud­ies that say fine ag­gre­gate from re­cy­cled C&D waste could be con­sid­ered for use as part re­place­ment of nat­u­ral fine ag­gre­gates (sand). But dura­bil­ity stud­ies will take at least one more year to con­clude

CEN­TRAL BUILD­ING RE­SEARCH IN­STI­TUTE, based in Roor­kee, says the qual­ity of ag­gre­gate would de­pend on the qual­ity of source. Tests on 10 beams, with 100 per cent re­cy­cled con­crete ag­gre­gate have shown promis­ing re­sults. Fur­ther re­search is un­der way to es­tab­lish the op­ti­mum per­cent­age of re­place­ment

CEN­TRAL ROAD RE­SEARCH IN­STI­TUTE, based in Delhi, has con­ducted mul­ti­ple stud­ies and is up­beat about the prospect of us­ing re­cy­cled C&D waste in mak­ing con­crete roads. It is will­ing to pro­vide guide­lines for use of C&D waste in road con­struc­tion

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